Mozilla has launched a new security feature to protect Firefox users from harmful browser extensions that target cryptocurrency wallets.
These fake extensions often pretend to be official tools from trusted crypto wallets but are used by cybercriminals to steal digital assets.
The new system automatically creates risk profiles for each wallet extension submitted to Mozilla’s Add-ons portal. If an extension reaches a certain level of risk, it triggers an alert for human reviewers to investigate. If found dangerous, the extension is taken down before it can harm more users.
Mozilla says this early detection system was built to catch crypto scam extensions before they gain attention. Automated checks serve as the first layer of defense, and when a threat is detected, reviewers step in for a deeper inspection.
Crypto wallet drainers are a growing threat. These scams work by stealing users’ private keys or credentials and quickly taking funds from their wallets. Last year alone, cybercriminals stole over $494 million through wallet-draining attacks affecting more than 300,000 addresses.
Andreas Wagner, who leads Mozilla’s Add-ons Operations team, says they have already removed hundreds of fake wallet extensions in recent years. He explains that it’s a constant battle, as scammers continue trying new ways to bypass detection methods.
Wagner recommends that Firefox users visit the official website of their crypto wallet and only install extensions linked directly from there to avoid scams.
This update adds an important layer of protection for Firefox users and shows Mozilla’s ongoing efforts to keep up with rising threats in the world of digital assets.
